boyle



(No Model.) 3 SheetsSheet 2.

V BOYLE & J. ROYLE, J1".

SHEDD'ING MEGHANISM FOR mom. No. 296,297. Patentedgkpr. 1, 18.84.

N. PETERS. Phnw-Liihogmhan \Muf ingtam D. c

(N0 Model.) 3 Sheets-Sheet 3. V. BOYLE & J. BOYLE, Jr.

SHEDDING MECHANISM FOR LOOMS.

N0 A D OOOOOOOOOOODOO .l 1 0000 o o 4 OOOOOOOQOOOOCOOOOOOOOOOO UNITEDSTATES PATIENT Fries.

VERNON BOYLE AND JOHN-BOYLE, JR, OF PATER-SON, NEW JERSEY.

SHEDDING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 296,297, dated April11-1884.

Application filed December 6, 1882. (No model.)

To all? whom it may concern:

Be it known that we, nnnon BOYLE and Joan BOYLE, Jr., both of Paterson,in the county of Passaic and State of New Jersey,

have invented a new and useful Improvement in Shedding Mechanism forLooms, of which the following is a specification.

Our invention relates to the kind of shedding mechanism known as adobby. In such mechanism the hooked liftingwires from which the harnessis suspended are operated by a knife or lifting-bar, over which theyhook, and a lower bar or grid, through which they pass.

Our invention consists, first, in a novel combination, with the saidlifting-bar or knife, the lower bar or grid, the lifting-wires, andneedles connected with theliftingwires, a patterncylinder, and means foroperating it, of a rockshaft extending between said bars, mechanismconnected directly with-the rock-shaft for imparting an oscillatingmotion thereto, and toggle-like connections between opposite sides ofthe rock-shaft and said bars, through which said bars are operated bythe rock-shaft.

By causing the rock-shaft before described to carry the toggle-likeconnections to and slightly past their centers we obtain a considerabledwell of the lifting-bar or knife and lower bar or grid at their extremeupward and downward positions, which is very desirable, as it affordsample time for the passage of the shuttle through the warp. The rockshaft above described we operate from a crank on the loom crank-shaft,and as two looms placed end to end are commonly run by one attendant, itis desirable that the connections for operating the (lobbies of thelooms should he at the right-hand side of one loom and at the lefthandside of the other loom. To provide for readily thus arranging the saidconnections is a further object of our invention; and to this end theinvention consists, second, in the combination, with the liftingbar orknife, thelower bar or grid, lifting-wires, the needles connected withthe lifting-wires, and a pattern-cylinder and means for operating it, ofa hollow rockshaft for operating the lifting-bar or knife and the lowerbar or grid, bearings for holding said hollow shaft against longitudinalmovement, and an innershaft capable of adj ustinentlengthwise throughthe hollow rock-shaft, but so fitted to the rock-shaft that it cannotturn independently thereof, but will cause the rock-shaft to turn withit. The said adjustable shaft may be square, polygonal, or p rovi (ledwith a feather or spline, and the opening through the rockshaft is ofcorresponding shape. The said inner shaft may be shifted so as toproject on either side of the (lobby, and we also provide anoutboard-bearing therefor, provided with a sleeve, through which theinner shaft may slide, but which is locked thereto, so as to turntherewith in the bearing. The combination of the inner sliding shaft andthe above-described roclcshaft is also advantageous, because inoperating heavy heddle-fraincs two dobbiesmay be used, the lifting-wiresof the two being connected with opposite ends'of the heddle-frames, andboth may be operated by a single inner shaft extending through bothrock-shafts and a single connection with the crank-shaft of the 100111.

The invention consists, third, in a novel means for shifting a vibratingframe carrying a pattern-cylinder in a direction lengthwise of thecylinder, so as to bring either of two sets of holes with which thecylinder is provided opposite the needles, for the purpose of changingthe pattern.

In the accompanying drawings, Figure 1 represents a side view of a dobbyembodying our invention. Fig. 2 represents a plan thereof. Fig. 3represents a plan of the cylinder and the end portions of a single rowof needles, showing the arrangement of the holes in the cylinder withrelation to the needles. Fig. 4 represents a vertical section of the(lobby, taken on the dot-ted line a as, Fig. 2, looking in the directionof the arrows. Fig. 5 represents a vertical section on the dotted line 1y, Fig. 4. Fig. 6 represents the cylinder and its vibrating frame anddevices for shifting the latter. Fig. 7 represents ahorizontal section,showing certain of the parts shown in Fig. 6;- and Figs. 8 and daredetail views illustrating certain of the devices whereby the vibratingframe carrying the cylinder is shifted and held.

Similar letters of reference designate corresponding parts in all thefigures.

A. A designate the two side frames, which bar or grid, 0, is arranged arock-shaft, D,

which is held .against longitudinal movement by its bearings in theframes A. As clearly shown in Fig. 5, the rock-shaftD is composed of aninner part, which passes through the frames A, and an outer part fittingbetween the frames, and adapted to be turned 011 the inner part, andsecured in the desired position by a set-screw, a. This rock-shaft hasarms 6, extending upward and downward, and these arms are connected withthe bars B and O by the links 6, thereby forming a toggle-likeconnectionbetween the rock-shaft and each bar, an arm, 6, and a link, 0,constituting the two memlfers of a toggle. I

The rock-shaftD is hollow, and through it extends an inner shaft, D,which is capable of being slid or shifted lengthwise. Said inner shaftis, however, so fitted to the rock-shaft as to insure the latter turningwith it; and in this example of our invention we have represented theinner shaft as square, and as fitting in a square hole in thehollow rockshaft. The inner shaft might, however, be polygonal, or provided with aspline or feather, and the hole in the rock-shaft correspondinglyshaped. The inner shaft, D, carries an arm, D", which is connected by arod, D, with a crank, D, on the main crank-shaft of the loom, D', Fig.l, designating such shaft. In case it is desired to operate the dobbyfrom either the right or left side of the loom, the inner shaft, D, isslipped through the rock-shaft, so as to project on that side.

In order to support the projecting end of the inner shaft, D, we providean outboard bearing, f, which is pivoted at f in a yoke, E, adapted toslide up and down in a support, E, and to be secured in differentpositions by a set-screw, f Within the bearing 7 is a sleeve, f whichcan turn'freely therein, and which has a square hole through it to fitthe square inner shaft, D.

In case the heddle-frames are very heavy, we may arrange a dobby at eachend of the loom, and connect opposite ends of the heddle-frames withlifting-wires in both dobbies.

In operating the rock-shaft D, thetogglelike connections 6 c are movedto and slightly past a central position, and thereby a considerabledwell of the bars B C is produced at the end of the upward movement ofthe former and the downward movement of the latter, thus affording ampletime for the shuttle to pass through the warp.

It is desirable that some adjustment be provided for causing the members6 e of each toggle to pass the center at the proper time in the throw ofthe crank D, and the means for connecting the arm D to the shaft Dprovides for such adjustment. As here shown, a hub, D having a squarecenter, is fitted on the shaft D, and the arm D is secured to the saidhub by bolts f which pass through segmental slots f? in ears or flangesprojecting from the said hub.

F designates the pattern or card cylinder, which is pivoted in a framecomposed of arms F, projecting from a rock-shaft, F, as is usual. Fromthe rock-shaft F an arm, F extends horizontally through the dobby to theopposite side thereof, as best shown in Fig. 5, and is connected by alink, F", with an arm, D, which is secured to the journal of therock-shaft D.

In order to form a secure connection between the arm F and the frame FF, the arm is provided with an upwardly-extending lug or car, 0 securedby a bolt, 6", to one of the arms F, as best shown in Fig. 8. The pivotat one end of the cylinder F is held in its hearing in one arm-F bymeans of a pivoted latch, f, (shown best in Fig. 6,) and when said latchis raised, as shown in dotted outline in said figure, that end of thecylinder may be swung horizontally outward to disengage its pivot fromthe bearing in the arm F, to which said latch f is applied. The bearingfat the opposite end of the cylinder is constructed, as best shown inFigs. 2 and 6, so as to enable the cylinder to be swung outward, asdescribed, and then withdrawn, for the purpose of introducing anothercylinder in its place.

The cylinder F is provided with the usual projections, g, for takinghold of the cards, and as it is vibrated back and forth it is turned bya pawl or hook, g, in the usual way.

The usual means are provided to pullback the cylinder F in case anymistake in the pattern is made. These means consist of a handlever, ffulcrumed at f and having connected with it an upwardly-extending rod, fwhich has a tooth, f, (shown dotted in Fig. 5,) for engaging with thecylinder, to turn it in a re verse direction to that in which it isturned by the pawl When the hand-lever f is pulled down, the upper endof the rod strikes the pawl g and throws it out of engagement with thecylinder, and the tooth f 11 on said rod f acts on the cylinder to turnit backward. The lever and rod f 8 f are returned by a spring, f afterthey have been operated by hand.

The needles (I are shown as arranged in two rows, one row above another,as best seen in Figs. 4 and 5,with the needles of each row opposite thespaces between the needles of the other row, in the usual manner. Thecylinder F has two rows of perforations or holes, h, but

the perforations or holes in each row are placed only half as far apartas the needles in a row, and, therefore, constitute two sets of holes,those in one set being alternated between those of the other set. Itwill therefore be seen that by shifting the cylinder lengthwise adistance equal to the distance fromlcenter to center or the holes 7L,theother set of holes will be brought into use. r

In order to act in conjunction with the adjustable cylinder, the cardsmust of vcoursehave two sets of perforationsyone intermediate to theother in a directionlengthwise of the cylinder, and when so made it isobvious that they IO may be used to weave two patterns alternately,

by shifting the cylinder lengthwise,without the necessity of removingthe cylinder and substituting another set of cards.

In Fi g. 3 the relative position of the needles and holes in'thecylinder is shown. Fig. 2 is deceptive, in that it apparently sh owsasmany needles as there are holes in each row in the cylinder; but this iscaused by all the needles in both rows being seen and presenting thesame appearance in said Fig. 2 that they would present if arranged inone row.

The rock-shaft F of the frame is fulcrumed in bearings G G, and thelatter of these bearings has an incline, i, on its outer side slopingdownward and outward, and a reverse incline, i, on its inner side. Theseinclines are shown in Figs. 5, 6, 7, 8, and 9.

H designates a latch pivoted on a stud or bolt, 5 which is secured in aprojecting por- 0 tion of the arm F, and which has two arms, j

j, which are out of line with each other vertically, and a handle,jiwhereby the latch may be swung. When the handle 3" of the latch H isswung upward,the arm j acts on the incline 2i and moves the cylinder tothe right, while when said handle is swung downward the arm j is causedto act on the incline 11' and moves the cylinder toward the left. Themovement of the cylinder in either direction is equal to 0 the distancebetween theholes h of the cylinder.

anism connected directly with said rock-shaft,

for imparting an oscillating motion thereto, and

pattern-cylinder,and means for operating it, of

a hollow rock-shaft and connections for operating said bars, bearingsfor holding the rockshaft against longitudinal movement, an inner shaftof square or-analogous transverse section,

fitted to and capable of adjustment lengthwise through said hollowrock-shaft, and mechanism for oscillating said inner shaft,substantially as and for the purpose described.

3. The combination, with the bars B O, the lifting-wires c, and needlesd, thepattern-cylinder, andmeans for operating it,0f the hollow rock-shaftD,provided with the arms 6, the links 6, the sliding inner shaft, 1),and mechanism for oscillating it, the pivoted bearing f, the sleeve f,the yoke E, the support E, wherein said yoke is vertically adjustable,and the setscrew f all substantially as described.

at. The combination, with the bars B O and means for operating them, thelifting-wires c, and thehorizontallyarranged needles d, of the cylinderF, provided with two sets of holes, a

vibrating frame carrying said cylinder, means for operating said frame,and devices whereby said frame, and with it the cylinder, may be shiftedin a direction lengthwise of the cylinder and retained in position aftershifting, substantially as and for the purpose described.

5. The combination,with the bars B 0, means for operating them, thelifting-wires c, and the needles d, of the cylinder F,provided with two1 sets of holes, a vibrating frame carrying said cylinder, mechanism foroperatingsaid frame,

the bracket or bearing G, provided with the reverse inclines i i, andthe pivoted latch H,

provided with arms j j, substantially as and for the purpose described.

VERNON BOYLE. JOHN BOYLE, JR.

Witnesses:

- HENRY T. Bnounv,

(3. MoLYNnUX.

